Salvation Mountain is an ongoing project of Leonard Knight, who has built and hand decorated the 3-storey “mountain” (I think it’s really just a hill) for nearly two decades. The hill is created out of adobe, straw and many gallons of paint and is covered in religious messages. Salvation Mountain also marks the entrance to Slab City, an ex-military training base which has become a camp for squatters and RV drivers. The area has no electricity or running water and takes its name from the large concrete slabs which were left when the military abandoned the area. Polar…